Recent content by aa2105

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    What seismic design codes should I consider for my subsea structures?

    Hi I am looking for a "Western" seismic analysis design code? So something by BS, ISO, API, etc... If there is one specific to the oil & gas industry and subsea strucutures, then great, but as this may not be available, any code on structural seismic design would do. I essentially...
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    Local to global transformation; end rotational displacments

    Thanks for the early response - but are you sure one can apply the DCM for rotations? I've attached a diagram anyhow. Cheers. A
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    Local to global transformation; end rotational displacments

    Hi I am analysing some piping which starts off as being aligned with the global axis system (X Y Z). So axially its X, laterally is Y and Z is vertically upwards. Due to bends etc. the end of the pipe is in a different orientation though still in the same plane - now the local axis system is x...
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    Modeling Aircraft Wing as Cantilevered Beam

    Hi For an initial approximate, I am modelling an aicraft wing as a cantilevered beam. I want to model the beam to incorporate the different materials used; a composite plate is sandwiched between a foam material and therefore the stiffnesses are different. How can I take this into account or...